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Due to increasing air-borne allergens an...

Due to increasing air-borne allergens and pollutants many people in urban areas are suffering from repiratory disorder causing wheezing due to :

A

(A) inflammation of bronchi and and bronchioles

B

(B) proliferation of fibrous tissues and damage of the alveolar walls

C

(C) reduction in the secretion of surfactants by pneumocytes

D

(D)benign growth on mucouslining of nasal cavity.

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A
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JMD PUBLICATION-Sexual Reproduction in Flowering Plants-Exercises
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  2. Which of the following statesments regarding post fertilization develo...

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  5. Persistent nucellus in the seed is known as :

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  6. The process of removal of anther from the flower bud before it dehisce...

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  7. Which of the following is not found on maize seed ?

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  8. Fill in the blanks Rearing flower is called as .

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  9. Fill in the blanks The long and slender stalk of stamen is .

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  10. Fill in the blanks The anther is consisting of four .

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  11. Fill in the blanks The pollen grains represent the gametophyte.

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  12. Fill in the blanks Pollen grain losses vaibility in rice within min...

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  13. Fill in the blanks Opposite the micropylar end of ovule is the .

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  14. Fill in the blanks A typical angiosperm embryosac at maturity has n...

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  15. Fill in the blanks Wind pollination is quite common in and .

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  16. Fill in the blanks Continued self pollination results in depression...

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  18. True and False Type Questions Occurance of more than one embryo in ...

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